newly created civzone is missing

[mrseeker]

Describe the bug
Dwarf Fortress crashes as soon as it embarks.

What happened
It crashes as soon as it embarks.

Expected behavior
Starting the embarkment.

Visual reference
no reference

ai version:

Dwarf Fortress 0.47.05
  Windows 64-bit
df-ai 0.47.05-r1-100-g345855e3 (Build ID: df-ai-dev-210322001)
  code 345855e39ecdb0e4614620cad12fcee01ac57f1c
DFHack 0.47.05-r1-46-gd5d41cd3 (Build ID: df-ai-dev-210322001)
  library d5d41cd374fdda6093f3be8b5b23f97e7af6c380
  structures ad1c98cf852936694300eaf8d69e91c10b7ea57f

Additional context
Anything else you'd like to add?

If you have a df-ai-debug.log file, drag or paste the file into this issue.

df-ai debug log opened. version information follows:
Dwarf Fortress 0.47.05
  Windows 64-bit
df-ai 0.47.05-r1-100-g345855e3 (Build ID: df-ai-dev-210322001)
  code 345855e39ecdb0e4614620cad12fcee01ac57f1c
DFHack 0.47.05-r1-46-gd5d41cd3 (Build ID: df-ai-dev-210322001)
  library d5d41cd374fdda6093f3be8b5b23f97e7af6c380
  structures ad1c98cf852936694300eaf8d69e91c10b7ea57f
Assertion failed on plan_construct.cpp line 1510: bld
newly created civzone is missing!